@if (shouldRun) {
  <mat-sidenav-container class="example-container">
    <mat-sidenav opened mode="side">Start content</mat-sidenav>
    <mat-sidenav opened mode="side" position="end">End content</mat-sidenav>
    Implicit main content
  </mat-sidenav-container>
} @else {
  <div>Please open on Stackblitz to see result</div>
}
